Birthday Flashback: Christina Aguilera

On Nov. 15, 2010, Christina cemented her spot in Hollywood history -- literally -- when she got her star on the Hollywood Walk of Fame. Her mother, Shelly Kearns, and her half-brother, Michael, were on hand to help celebrate the occasion. "Thank you so much for coming out to support me and support this amazing, incredible day in my life," she said in her acceptance speech. "Dream big, everybody, because I worked very hard for this moment and I want to thank you all for allowing me the opportunity to share it with all of you. I love you!"